AMD finally posted Catalyst 12.2 WHQL driver suite, the one package that installs drivers and system software for AMD/ATI Radeon GPUs, AMD APU graphics, AMD chipset-integrated graphics, etc. Catalyst 12.2 WHQL brings official support for Radeon HD 7700 series, and Radeon HD 7900 series (for Windows 7/Vista only, for Windows XP it will be added with Catalyst 12.4). Super-sampling AA (SSAA) is now available for DirectX 10 and DirectX 11 applications, supported on the Radeon HD 7700 series and HD 7900 series. It must be enabled through Catalyst Control Center, and application profiles, and games should support in-game AA modes.

AMD also introduced enhancements for Eyefinity 2.1, including custom-resolutions, dynamic configuration changes (switching between different display configurations will occur automatically by loading the appropriate profile, when plugging/unplugging displays); Windows Taskbar re-positioning, and improvements with the Eyefinity Profile Manager. For more information, please refer to the Release Notes document.

On wifes new PC i removed an older unneeded nVidia card in order to use the onboard AMD HDMI "solution", so I uninstalled all nVidia plus the MS stock Ati driver with a cleaner and installed this latest AMD driver glory and then clicking on CCC does *nothing*.
I didn't even ask for playing games, no, but just that it worked on desktop. I never had problems uninstalling, reinstalling, beta, WHQL, whatever with nVidia... AMD just hates me... lol
BTW, AMD Gigabyte mobo and processor. "Pure blessings". 8)

On wifes new PC i removed an older unneeded nVidia card in order to use the onboard AMD HDMI "solution", so I uninstalled all nVidia plus the MS stock Ati driver with a cleaner and installed this latest AMD driver glory and then clicking on CCC does *nothing*.
I didn't even ask for playing games, no, but just that it worked on desktop. I never had problems uninstalling, reinstalling, beta, WHQL, whatever with nVidia... AMD just hates me... lol
BTW, AMD Gigabyte mobo and processor. "Pure blessings". 8)

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Same thing happens to me with my HD5850 2/3 of the time. Make sure you uninstall using the removal tool, restart, run driver sweeper, restart, install new driver. I have to do this every time I update.

DX9 graphics has to be duplicated into OS memory. they usually dont reserve/dupe more than 256MB, but it still has to be done.

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From Mussels' OS guide:

"The reason a 32 bit system can only use 3GB (or 3.25GB, or whatever number you get) of system ram is because it doesnt have enough address space left. Video cards are the most important part of a PC that uses address space."